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ALSA: scarlett2: Add input mute controls

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Add controls for the input mute switches that the Vocaster interfaces
have. Mark scarlett2_notify_input_mute() as __always_unused until it
gets used when the Vocaster callback function array is added.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Message-ID: <3b384b4e759241bd06f0c223e9f4f00467d88318.1710264833.git.g@b4.vu>
This commit is contained in:
Geoffrey D. Bennett 2024-03-13 05:06:23 +10:30 committed by Takashi Iwai
parent 23715a2176
commit bff5421a2c
1 changed files with 141 additions and 1 deletions
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142
sound/usb/mixer_scarlett2.c
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@ -85,7 +85,7 @@
* controls
* - disable/enable MSD mode
* - disable/enable standalone mode
* - input gain, autogain, safe mode
* - input mute, gain, autogain, safe mode
* - direct monitor mixes
*
* <ditaa>
@ -214,6 +214,7 @@ static const u16 scarlett2_mixer_values[SCARLETT2_MIXER_VALUE_COUNT] = {
#define SCARLETT2_LEVEL_SWITCH_MAX 2
#define SCARLETT2_PAD_SWITCH_MAX 8
#define SCARLETT2_AIR_SWITCH_MAX 8
#define SCARLETT2_INPUT_MUTE_SWITCH_MAX 2
#define SCARLETT2_PHANTOM_SWITCH_MAX 2
#define SCARLETT2_INPUT_GAIN_MAX 2
@ -329,6 +330,7 @@ static void scarlett2_notify_volume(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_level(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_pad(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_air(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_mute(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_phantom(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_other(struct usb_mixer_interface *mixer);
static void scarlett2_notify_input_select(struct usb_mixer_interface *mixer);
@ -415,6 +417,7 @@ enum {
SCARLETT2_CONFIG_PAD_SWITCH,
SCARLETT2_CONFIG_MSD_SWITCH,
SCARLETT2_CONFIG_AIR_SWITCH,
SCARLETT2_CONFIG_INPUT_MUTE_SWITCH,
SCARLETT2_CONFIG_STANDALONE_SWITCH,
SCARLETT2_CONFIG_PHANTOM_SWITCH,
SCARLETT2_CONFIG_PHANTOM_PERSISTENCE,
@ -915,6 +918,11 @@ struct scarlett2_device_info {
*/
u8 air_option;
/* the number of analogue inputs with a software switchable
* mute control
*/
u8 mute_input_count;
/* the number of phantom (48V) software switchable controls */
u8 phantom_count;
@ -996,6 +1004,7 @@ struct scarlett2_data {
u8 input_level_updated;
u8 input_pad_updated;
u8 input_air_updated;
u8 input_mute_updated;
u8 input_phantom_updated;
u8 input_select_updated;
u8 input_gain_updated;
@ -1018,6 +1027,7 @@ struct scarlett2_data {
u8 pad_switch[SCARLETT2_PAD_SWITCH_MAX];
u8 dim_mute[SCARLETT2_DIM_MUTE_COUNT];
u8 air_switch[SCARLETT2_AIR_SWITCH_MAX];
u8 input_mute_switch[SCARLETT2_INPUT_MUTE_SWITCH_MAX];
u8 phantom_switch[SCARLETT2_PHANTOM_SWITCH_MAX];
u8 phantom_persistence;
u8 input_select_switch;
@ -1045,6 +1055,7 @@ struct scarlett2_data {
struct snd_kcontrol *level_ctls[SCARLETT2_LEVEL_SWITCH_MAX];
struct snd_kcontrol *pad_ctls[SCARLETT2_PAD_SWITCH_MAX];
struct snd_kcontrol *air_ctls[SCARLETT2_AIR_SWITCH_MAX];
struct snd_kcontrol *input_mute_ctls[SCARLETT2_INPUT_MUTE_SWITCH_MAX];
struct snd_kcontrol *phantom_ctls[SCARLETT2_PHANTOM_SWITCH_MAX];
struct snd_kcontrol *input_select_ctl;
struct snd_kcontrol *input_link_ctls[SCARLETT2_INPUT_GAIN_MAX / 2];
@ -2970,6 +2981,8 @@ static void scarlett2_autogain_update_access(struct usb_mixer_interface *mixer)
scarlett2_set_ctl_access(private->level_ctls[i], val);
for (i = 0; i < info->air_input_count; i++)
scarlett2_set_ctl_access(private->air_ctls[i], val);
for (i = 0; i < info->mute_input_count; i++)
scarlett2_set_ctl_access(private->input_mute_ctls[i], val);
for (i = 0; i < info->phantom_count; i++)
scarlett2_set_ctl_access(private->phantom_ctls[i], val);
}
@ -3005,6 +3018,9 @@ static void scarlett2_autogain_notify_access(struct usb_mixer_interface *mixer)
for (i = 0; i < info->air_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->air_ctls[i]->id);
for (i = 0; i < info->mute_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->input_mute_ctls[i]->id);
for (i = 0; i < info->phantom_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO,
&private->phantom_ctls[i]->id);
@ -4619,6 +4635,100 @@ static const struct snd_kcontrol_new scarlett2_air_ctl[2] = {
}
};
/*** Input Mute Switch Controls ***/
static int scarlett2_update_input_mute(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
private->input_mute_updated = 0;
if (!info->mute_input_count)
return 0;
return scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_INPUT_MUTE_SWITCH,
info->mute_input_count, private->input_mute_switch);
}
static int scarlett2_input_mute_ctl_get(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int err = 0;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
if (private->input_mute_updated) {
err = scarlett2_update_input_mute(mixer);
if (err < 0)
goto unlock;
}
ucontrol->value.integer.value[0] =
private->input_mute_switch[elem->control];
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static int scarlett2_input_mute_ctl_put(struct snd_kcontrol *kctl,
struct snd_ctl_elem_value *ucontrol)
{
struct usb_mixer_elem_info *elem = kctl->private_data;
struct usb_mixer_interface *mixer = elem->head.mixer;
struct scarlett2_data *private = mixer->private_data;
int index = elem->control;
int oval, val, err;
mutex_lock(&private->data_mutex);
if (private->hwdep_in_use) {
err = -EBUSY;
goto unlock;
}
err = scarlett2_check_put_during_autogain(mixer);
if (err < 0)
goto unlock;
oval = private->input_mute_switch[index];
val = ucontrol->value.integer.value[0];
if (oval == val)
goto unlock;
private->input_mute_switch[index] = val;
/* Send switch change to the device */
err = scarlett2_usb_set_config(
mixer, SCARLETT2_CONFIG_INPUT_MUTE_SWITCH,
index, val);
if (err == 0)
err = 1;
unlock:
mutex_unlock(&private->data_mutex);
return err;
}
static const struct snd_kcontrol_new scarlett2_input_mute_ctl = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "",
.info = scarlett2_autogain_disables_ctl_info,
.get = scarlett2_input_mute_ctl_get,
.put = scarlett2_input_mute_ctl_put,
};
/*** Phantom Switch Controls ***/
static int scarlett2_update_input_phantom(struct usb_mixer_interface *mixer)
@ -5497,6 +5607,16 @@ static int scarlett2_add_line_in_ctls(struct usb_mixer_interface *mixer)
return err;
}
/* Add input mute controls */
for (i = 0; i < info->mute_input_count; i++) {
scnprintf(s, sizeof(s), fmt, i + 1, "Mute", "Switch");
err = scarlett2_add_new_ctl(
mixer, &scarlett2_input_mute_ctl,
i, 1, s, &private->input_mute_ctls[i]);
if (err < 0)
return err;
}
/* Add input phantom controls */
if (info->inputs_per_phantom == 1) {
for (i = 0; i < info->phantom_count; i++) {
@ -6558,6 +6678,22 @@ static void scarlett2_notify_input_air(struct usb_mixer_interface *mixer)
&private->air_ctls[i]->id);
}
/* Notify on input mute switch change */
static __always_unused void scarlett2_notify_input_mute(
struct usb_mixer_interface *mixer)
{
struct snd_card *card = mixer->chip->card;
struct scarlett2_data *private = mixer->private_data;
const struct scarlett2_device_info *info = private->info;
int i;
private->input_mute_updated = 1;
for (i = 0; i < info->mute_input_count; i++)
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE,
&private->input_mute_ctls[i]->id);
}
/* Notify on input phantom switch change */
static void scarlett2_notify_input_phantom(struct usb_mixer_interface *mixer)
{
@ -7171,6 +7307,10 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
if (err < 0)
return err;
err = scarlett2_update_input_mute(mixer);
if (err < 0)
return err;
err = scarlett2_update_input_phantom(mixer);
if (err < 0)
return err;